There is no Sleepy Hollow on the internet, no peaceful spot where contemplativeness can work its restorative magic. There is only the endless, mesmerizing buzz of the urban street. The stimulations of the web, like those of the city, can be invigorating and inspiring. We wouldn’t want to give them up. But they are, as well, exhausting and distracting. They can easily, as Hawthorne understood, overwhelm all quieter modes of thought. One of the greatest dangers we face as we automate the work of our minds, as we cede control over the flow of our thoughts and memories to a powerful electronic system, is the one that informs the fears of both the scientist Joseph Weizenbaum and the artist Richard Foreman: a slow erosion of our humanness and our humanity.

It’s not only deep thinking that requires a calm, attentive mind. It’s also empathy and compassion. Psychologists have long studied how people experience fear and react to physical threats, but it’s only recently that they’ve begun researching the sources of our nobler instincts. What they’re finding is that, as Antonio Damasio, the director of USC’s Brain and Creativity Institute, explains, the higher emotions emerge from neural processes that “are inherently slow.” In one recent experiment, Damasio and his colleagues had subjects listen to stories describing people experiencing physical or psychological pain. The subjects were then put into a magnetic resonance imaging machine and their brains were scanned as they were asked to remember the stories. The experiment revealed that while the human brain reacts very quickly to demonstrations of physical pain – when you see someone injured, the primitive pain centers in your own brain activate almost instantaneously – the more sophisticated mental process of empathizing with psychological suffering unfolds much more slowly. It takes time, the researchers discovered, for the brain “to transcend immediate involvement of the body” and begin to understand and to feel “the psychological and moral dimensions of a situation.”